LEARN How to Change URL of Web Stories

1. Go to Plugins File Editor

2. Select plugin to edit: Web Stories

3. Drop Down Includes Folder 

4. Select Story_post-type.php

Go to line 49 and change  REWRITE_SLUG = 'web_stories' to  REWRITE_SLUG = 'Story'

Update file and Deactivate web stories plugin 

Activate web Stories Plugin

check web stories url structure on your website now.  Tested on WP 6.03 works great.